@misc{indiciae478d260fb5b5,
  title = {An acoustic sensitivity study of general aviation propellers},
  author = {Korkan, K. D. and Gregorek, G. M. and Keiter, I.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19800066021},
  note = {Source identifier: 19800066021}
}